Entropy

Stellar Observation

An independently verifiable temporal proof from an external entropy source.

Observation ID: 019fd1dd-2af1-75bc-a87c-dbb0e6392efb
Capture Method: Streaming
Captured At: Aug 5, 2026, 12:19 PM UTC

Everything Truestamp records about this entropy observation, as a single canonical JSON object.

{
  "block_id": "019fd1dd-c5ee-7b72-89ef-7d5ffaa2f243",
  "capture_method": "http_sse",
  "entropy": {
    "closed_at": "2026-08-05T12:19:17Z",
    "hash": "ec99aabba4f9a8425a80062d6cd08ae607bcffc355286a52588802e3a6caf8b1",
    "paging_token": "274063654159122432",
    "sequence": 63810417
  },
  "entropy_hash": "80cf6b03dae6426b99e9920f23e5d5945e6c2ddd47be7e2b31108da2765fe46c",
  "id": "019fd1dd-2af1-75bc-a87c-dbb0e6392efb",
  "inserted_at": "2026-08-05T12:19:20.433394Z",
  "metadata": {},
  "metadata_hash": "5dd81d4309de99c9f8e70822e760f0eece8c33370ff5fb5da3af75bab0cbaab8",
  "observation_hash": "21437795aa5c00497bf74041d7b87d2a0f00239a8e790a2f00e3e5718c044c0b",
  "signature": "yvCv3E8ZBYkCuFslKrlrMRSlKHAbrEj7UHhklSpMHhskUzksIu6YLW//C3Z88+3MsipOYKH+0VRNEqAz1X/sBQ==",
  "signing_key_id": "3c19f776",
  "source": "entropy_stellar",
  "state": "committed"
}

Observation

Verifiable entropy captured from an external public source. The canonical JSON representation and its hash are used as input to the blockchain's Merkle tree.

Entropy Canonical Pretty

{"closed_at":"2026-08-05T12:19:17Z","hash":"ec99aabba4f9a8425a80062d6cd08ae607bcffc355286a52588802e3a6caf8b1","paging_token":"274063654159122432","sequence":63810417}

Entropy Hash

80cf6b03dae6426b99e9920f23e5d5945e6c2ddd47be7e2b31108da2765fe46c

Observation Hash

21437795aa5c00497bf74041d7b87d2a0f00239a8e790a2f00e3e5718c044c0b

SHA-256 composite hash binding the entropy data, metadata, and signing key id. This is the value placed as a leaf in the block's Merkle tree, and the value covered by the signature below.

Observation ID: 019fd1dd-2af1-75bc-a87c-dbb0e6392efb

Time Delta

Stellar ledgers include a close time representing when the ledger was finalized by network consensus. Ledgers close approximately every 5 seconds under normal operation.

Stellar Ledger Close Time

Aug 5, 2026, 12:19 PM UTC

Ledger sequence 63810417

Truestamp Capture Time

Aug 5, 2026, 12:19 PM UTC

Real-time capture via streaming

Time Difference (Clock Delta)

4 seconds

Source timestamp was 4 seconds behind capture time

Interpretation: A small delta (under 30 seconds) indicates normal Stellar network operation with ledgers closing approximately every 5 seconds.

Signature Verification

Truestamp signed this observation's hash at capture. Verify the signature in any Ed25519 verifier using the observation hash, public key, and signature shown below. The active public key is also published at https://www.truestamp.com/.well-known/keyring.json.

Algorithm

Ed25519

Message (Observation Hash, Hex encoded)

21437795aa5c00497bf74041d7b87d2a0f00239a8e790a2f00e3e5718c044c0b

Public Key (Base64 encoded)

1hHbF5H5u8LiSp+nVMRb8duR2eGkOo5Q1JYfcmAtF28=

Signature (Base64 encoded)

yvCv3E8ZBYkCuFslKrlrMRSlKHAbrEj7UHhklSpMHhskUzksIu6YLW//C3Z88+3MsipOYKH+0VRNEqAz1X/sBQ==

Verify Signature Manually

Opens an external Ed25519 verification tool with all fields pre-filled.